1、The lens is made of high‑quality optical glass, high‑definition grinding treatment, and the frame is made of aviation aluminum. 2、The lens has water‑proof, oil‑proof, anti‑fouling, and anti‑scratch properties, so that water droplets and oil can not be absorbed on the surface, making it easier to clean and maintain. 3、The multi‑layer nanometer coating process makes the surface of the lens form a protective layer similar to the surface of the lotus leaf. 4、NDPL filter can obtain more freedom to control the aperture and shutter, bring more exposure means and creative space for photography creation, and effectively prevent overexposure. 5、NDPL filter, the number behind ND represents the ability of the ND lens to block light, and has a PL polarization composite function to eliminate harmful polarized light